국내 가구업체를 중심으로 한 침대 디자인 경향에 관한 연구 - 퀸 사이즈 침대를 중심으로 -

강신우,조숙경,Kang, Shin-Woo,Cho, Sook-Kyung 한국가구학회 2006 한국가구학회지 Vol.17 No.3

The change of consumers' lifestyles causes frequent study on beds along with growth of economy, improvement of education and increase of dwelling in new towns and nuclear family. Beds are frequently developed in recent years since consumers' lifestyles increasingly change caused by transformation of types of dwelling, influence of western lifestyle, and increase uses of a bed. Also, this transformation causes needs for research on bed designs. A Bed is an essential item in a life since people spend one third of a day in Also, in contemporary, the ages of consumers are varied from infants to seniors. The study examines the importance of beds which playa major role in households. Moreover, the purpose of this study of beds focused on surface materials, colors, and designs is suggesting bases for future developments.

가정용 가구를 위한 표면제에 관한 연구 - 침실가구를 중심으로 -

강신우,Kang, Shin-Woo 한국가구학회 2005 한국가구학회지 Vol.16 No.2

Surface materials of furnitures are continuously studied and marketed with new patterns and new technology so as to create designs and fashions but even professionals are also difficult in distinguishing natural materials from artificial materials. Like this, furniture industry is required for rapid coping with the preference of customers which requires high grade of consumption pattern and is rapidly changed; it is intended to review the current situation of our furniture industry. The purpose of this thesis is to activate furniture industry and elevate the importance of surface materials in assumption of continuous R&D based on systemic data analysis of the kinds and colors of surface materials used in the companies within rank five of sales volume in domestic furniture companies.

2.45GHz LR-WPAN 수신기를 위한 Timing Estimator 알고리즘의 설계

강신우,도주현,박타준,최형진,Kang Shin-Woo,Do Joo-Hyun,Park Tha-Joon,Choi Hyung-Jin 한국통신학회 2006 韓國通信學會論文誌 Vol.31 No.3A

본 논문에서는 2.45GHz 대역 IEEE 802.15.4 LR-WPAN(Low-Rate Wireless Personal Area Network; ZigBee) 시스템의 수신기를 위한 개선된 방식의 Timing estimator의 알고리즘을 제안한다. 저가 구현을 지향하는 LR-WPAN 시스템의 특성상 고가의 오실레이터를 사용할 수 없으므로 반송파 중심 주파수의 80ppm에 해당하는 주파수 옵셋 환경에서 안정된 동작이 가능한 Timing estimator 알고리즘이 요구된다. 본 논문에서는 이러한 수신 환경을 고려하여 Multiple delay differential filter를 적용함으로써 주파수 옵셋에 대한 강인성 및 수신 성능의 안정성을 증대시켰으며, Multiple delay differential filter의 출력 신호에 대한 reference 신호의 상관 결과가 I-channel 에만 국한되는 특성을 이용하여 일반적인 noncoherent 방식 대신 coherent 방식의 correlator를 적용함으로써 non-coherent 방식의 제곱 손실을 제거하여 검출 성능을 향상시킴과 동시에 복잡도를 감소시켜 초소형, 저전력, 저가를 지향하는 LR-WPAM 수신기에 보다 적합하도록 설계하였다. 다양한 채널 환경에서의 성능정가를 통하여 제안된 알고리즘이 differential detection 기반의 noncoherent 방식보다 평균적으로 2dB의 향상된 성능을 보임을 입증하였다. In this paper, we propose an enhanced Timing Estimator algorithm for 2.45GHz LR-WPAN receiver. Because an expensive and highly efficient oscillator can't be used for low-cost implementation, a Timing Estimator algorithm having stable operation in the channel environment with center frequency tolerance of 80 ppm is required. To enhance the robustness to frequency offset and the stability of receiver performance, multiple delay differential filter is adopted. By utilizing the characteristic that the correlation result between the output signal of Multiple delay differential filter and reference signal is restricted on the In-phase part of the correlator output, a coherent detection scheme instead of the typical noncoherent one is adopted for Timing Estimator. The application of the coherent detection scheme is suitable for LR-WPAN receiver aimed at low-cost, low-power, and low-complexity, since it can remove performance degradation due to squaring loss of I/Q squaring operation and decrease implementation complexity. Computer simulation results show that the proposed algorithm achieved performance improvement compared with the differential detection-based noncoherent scheme by 2dB in average.

이태리 근대디자이너 알레산드로 멘디니에 관한 연구

강신우,Kang Shin-Woo 한국가구학회 2004 한국가구학회지 Vol.15 No.2

The works of Alessandro Mendini doing a big role in Italian design give us fresh impetus and the message on future design. His work activity has created new space and given the second life with arranging radical and fresh visual ornaments by using various materials. His design works have been challenged on fixed and ordinary thought. He applies gorgeous and plain natural colors. When he develops idea into the form, his works hold meditation and clear subjectivity. Alessandro Mendini makes us aware that his work of arts connects human spirit with thing.

CNN 기반의 스마트 냉장고 재고 관리를 위한 움직이는 손안의 상품 인식

강신우(Shin-Woo Kang),이태호(Tae-Ho Lee),김진성(Jin-Sung Kim),이혁재(Hyuk-Jae Lee) 대한전자공학회 2020 대한전자공학회 학술대회 Vol.2020 No.11

TRX와 저항운동 시 상체와 하체 및 복부의 근활성도 비교

강신우(Kang, Shin-Woo),석민화(Suk, Min-Hwa),신윤아(Shin, Yun-A) 한국사회체육학회 2014 한국사회체육학회지 Vol.0 No.58

The purpose of this study was to investigate exercise intensity of TRX and each muscles by comparing muscle activity occurred through resistance training and TRX. The exercise of this study consisted of the upper body(bench press, low row), lower body(squat, leg curl) an abdominal muscle(crunch) using TRX and weight machine. In exercises for upper body, the TRX chest press with descending phase showed significantly higher triceps brachii muscle than 80%/1RM the bench press with same phase conducted on the flat ground. There was no difference of the muscle activity between seated row and TRX low row. In exercises for lower limb, 80%/1RM squat with ascending and descending phase showed significantly greater rectus femoris, vestus lateralis, and vestus medialis muscle activities than TRX squat. There was no difference of the muscle activities between leg curl row and TRX leg curl. In exercises for abdominal muscles, there was no difference of the muscle activities between crunch and TRX crunch. There is significant difference between the TRX squat and 80%/1RM squat. However, the other muscle activity was not significantly different between TRX and weigh t machine exercise. It shows that TRX is not only effective for core muscle strength, but also upper and lower body strength. But performing TRX squat that it makes little instability, it needs to be modified into alternate conformation such as one leg squat increasing instability much more.

항공전자 멀티센서 정보 융합 구조 연구

강신우 ( Shin Woo Kang ),이승필 ( Seoung Pil Lee ),박준현 ( Jun Hyeon Park ) 한국항행학회 2013 韓國航行學會論文誌 Vol.17 No.6

다른 종류의 센서에서 생산되는 데이터를 하나의 정보로 종합하는 공정으로 멀티 센서 데이터 융합이 연구되고 있으며 다양한 플랫폼에서 활용되고 있다. 항공기도 여러 종류의 센서들을 장착하고 있으며 항공전자 체계에서 이를 통합하여 관리하고 있다. 항공기 센서의 성능이 높아지면서 항공전자 관점에서 센서 정보의 통합이 점차 증가하고 있다. 센서에서 생산된 데이터를 하나의 융합된 정보로 항공기 조종사에게 전시 장비로 시현하기 위한 융합을 담당하는 소프트웨어 관점에서 정보 융합을 다루는 연구는 활성화 되지 않고 있다. 항공기에서 정보 융합의 목적은 올바른 전투상황을 조종사에게 제공하여 임무를 수행하는 데에 필요한 결정을 돕고 이를 위한 조종 업무량을 최소화하는 것이다. 본 논문에서는 다양한 센서들이 운용되는 항공전자 시스템의 멀티센서데이터 융합을 위한 소프트웨어 관점에서 센서들이 생산하는 데이터가 사용자에게 종합된 정보 형태로 제공되기 위한 구조를 보인다. Synthesis process from the data produced by different types of sensor into a single information is being studied and used in a variety of platforms in terms of multi-sensor data fusion. Heterogeneous sensors has been integrated into various aircraft and modern avionic systems manage them. As the performance of sensors in aircraft is getting higher, the integration of sensor information is required from the viewpoint of avionics gradually. Information fusion is not studied widely in the view of software that provide a pilot with fused information from data produced by the sensor in the form of symbology on a display device. The purpose of information fusion is to assist pilots to make a decision in order to perform mission by providing the correct combat situation from avionics of the aircraft and to minimize their workload consequently. In the aircraft avionics equipped with different types of sensors, the software architecture that produce a comprehensive information using the sensor data through multi-sensor data fusion process to the user is shown in this paper.

항공기 센서 실시간 항적 정보와 항공전자 전술데이터링크 정보융합 구조 연구

강신우 ( Shin-woo Kang ),이영서 ( Young Seo Lee ),박상웅 ( Sang-woong Park ),안태식 ( Tae-sik Ahn ) 한국항행학회 2022 韓國航行學會論文誌 Vol.26 No.5

항공기에 탑재된 센서들은 임무 수행에 필수 요소이며 센서들을 통해 얻어진 데이터의 융합은 임무 효율을 높이고 조종사의 부담을 줄이기 위해 적용되고 있다. 센서들로부터 얻어진 데이터를 특정 대상에 대해 일관되고 보다 정리된 형태로 조종사에게 제공하기 위해 데이터 융합이 적용되어 발전하고 있다. 현재 운용되고 있는 군용 항공기는 Link-16 과 같은 전술데이터링크에 연동하여 향상된 전술 상황을 조종사에게 전시하여 임무 효율을 높이고 있다. 항공기에 탑재된 센서가 고성능화 되면서 얻어진 정확도가 향상된 센서 데이터와 전술데이터링크를 통해 수신한 전술상황정보를 융합하여 조종사에게 고신뢰성의 전술상황 및 임무 환경을 제공하고 효율적인 임무 수행과 높은 생존성을 기대할 수 있다. 본 논문에서는 항공기 실시간 센서 데이터와 전술데이터링크를 통해 얻어지는 데이터를 종합된 정보 형태로 제공하기 위한 융합 구조를 보인다. The sensors of aircraft are necessity for mission performance and fusion process of data from them is applied for increase of mission efficiency and decrease of aircraft pilot workload. Data fusion is applied and developed to provide pilot a series of more processed data format about a specific target from sensors in aircraft. Military aircraft currently in operation are linked with a tactical data link such as Link-16 to display improved tactical situation to pilots to increase mission efficiency. By fusing the sensor data with improved accuracy obtained as the sensors’ performance mounted on the aircraft become higher and the tactical situation information received through the tactical data link, it provides the pilot with a highly reliable tactical situation and mission environment, and expects efficient mission performance and high survivability. In this paper, a fusion architecture to produce fused data with realtime information from the sensors and data through a tactical data link is shown.

교통사고 상해증후군의 한의치료에 대한 경제성평가를 위한 주제범위 문헌고찰

강신우(Shin-Woo Kang),황윤경(Yun Gyeong Hwang),황만석(Man-Suk Hwang),이혜윤(Hye-Yoon Lee) 척추신경추나의학회 2021 척추신경추나의학회지 Vol.16 No.2

Objectives This study is aimed to evaluate cost-effectiveness of treatment of Korean Medicine for whiplash associated disorders (WAD) and to suggest the direction of future research. Methods We searched papers in Pubmed database to use some keywords indicating whiplash injury syndrome, treatment of Korean Medicine and cost-effectiveness. After searching, appropriate papers were selected depending on the exclusion criteria. The selected papers were analyzed in the sections of author, publication year, intervention and control groups, outcome measurement, the list including in the cost, cost-effectiveness, cost-utility and study design. Results Four studies about effect of Korean medicine and 3 studies about economic evaluation were finally included. Acupuncture was effective for balance disorder and neck pain. Economic evaluation studies used analytical decision model or cost-consequence analysis. Cost-effectiveness analysis using visual analog scale and cost-utility analysis using quality adjusted life years were performed. Initiating timing of proper management affected the consequence of treatments. Direct and indirect medical costs including supportive devices, and non-medical costs such as litigation were considered. Conclusions We conclude that studies haven’t been conducted so far to evaluate the cost-effectiveness of Korean Medicine in whiplash injury syndrome. Thus, future studies are needed in this section.

MBOK DS-UWB 시스템을 위한 주파수 영역 등화기 알고리즘의 설계

강신우(Shin-Woo Kang),임세빈(Se-Bin Im),최형진(Hyung-Jin Choi) 한국통신학회 2007 韓國通信學會論文誌 Vol.32 No.10A

본 논문에서는 고속 무선 통신을 위한 IEEE 802.15.TG3a PHY proposal 중에서 MBOK DS-UWB (M-ary bi-orthogonal keying direct sequence UWB) 시스템의 수신기를 위한 개선된 방식의 FD MMSE (frequency domain minimum mean square error) equalizer 알고리즘을 제안한다. 기존 FD MMSE equalizer 알고리즘에서는 모든 전송 패킷에 CP (cyclic prefix) 를 삽입해야 하므로 일반적인 SC (single carrier) 시스템에 적용할 경우 구조적인 제한이 발생한다. 본 논문에서는 이러한 문제점을 해결하기 위해 CP를 사용하지 않는 FD MMSE equalizer 알고리즘을 제안하였으며, 보다 정확한 채널 추정 및 보상을 위하여 MAF (moving average filter) 및 moving FFT 기법을 사용하여 수신 성능의 안정성을 증대시킴으로써 실내 무선 채널 환경에 보다 적합하도록 설계하였다. IEEE 802.15.TG3a 무선 채널 모델 환경에서의 성능 평가를 수행하고 일반적인 FDE 및 TD (time domain) MMSE-RAKE 수신기와의 성능 비교를 통해, 제안한 FD MMSE equalizer 알고리즘의 우수성을 입증하였다. In this paper, we propose a FD MMSE (frequency domain minimum mean square error) equalizer algorithm for MBOK DS-UWB (M-ary bi-orthogonal keying direct sequence UWB) systems considered as a PHY proposal for high-speed wireless communication in IEEE 802.15.TG3a. The conventional FD MMSE equalization scheme has a structural limit due to insertion of the cyclic prefix (CP) in all transmit packets, but the proposed scheme is able to equalize the channel effect without CP. In order to overcome channel estimation error by multipath delay, we introduce a moving FFT and a moving average scheme. Compared with conventional FD MMSE equalizer and the traditional TD (time domain) MMSE-RAKE receiver, the proposed FD MMSE equalizer has better BER performance and we demonstrate this result by computer simulation.